Book-stitcher machine.



E. CRAIG.

BOOK STITCHER MACHINE.

APPLICATION FILED DEC.27| 1909.

' Patented Jan. 15,1918.

7 SHEE-TS-SHEET I- E. CRAIG.

BOOK STITCHER MACHINE. APPLICATION FILED 050.21. 1909.

Patented Jan. 15, 1918.

7 SHEETSSHEET 2- 2 WIT- E. CRAIG.

BOOK STITCHER MACHINE.

APPLICATION FILED nEc.21.1so9.

Patented Jan. 15, 1918.

7 SHEETS-SHEET 3.

E. CRAIG.

BOOK STITCHER MACHINE.

APPLICATION FILED 050.27, 1909 iSfijS-SHEET 4.

Patented Jan. 15, 1918.

E. CRAIG.

BOOK STITCHER MACHINE. APPLICATION FILED DE C.27. I909.

I SHEETS-SHEET 5.

E. CRAIG.

BOOK STITCHER MACHINE.

APPLICA? c mw L let/cw I 4% cum/TM Patanted Jan. 15,1918,

7 SHEETS-SHEET? narrn snare ,arnnr carton.

EDWARD CRAIG, OF ST. JOSEPH, MICHIGAN, ASSIGNOR T0 SARANAC MACHKNE 00., OF

ST. JOSEPH, MICHIGAN, A CORPORATION OF MICHIGAN.

nooK-s'rrrcHEa ntaomnn.

Specification of Letters Patent.

Patented Jan. 115, 19118.

Application filed December 27, 1909. Serial No. 534,902.

To all whom it may concern:

Be it known that I, EDWARD CRAIG, a citizen of the United States of America, and resident of St. Joseph, Berrien county, Michigan, have invented a certain new and useful Improvement in Book-Stitcher Machines, of Which the following is aspecification.

My invention relates to stapling machines of the kind used in stitching books or stapling the corners of boxes.

Theobjcct of my invention is to provide an improved and highly efiicient machine for this purpose.

It isialso anobject to provide certain details and features of construction and combinations tending to increase the general efliciency and desirability of a machine of this particular character.

To these and other useful ends, my invention consists in matters hereinafter set forth and claimed; 2

In the accompanying drawings,

Figure 1 is a front elevation of a stapling machine embodying the principles of my invention. v

Fig. 2 is a vertical section on line 2-2 in Fig. e.

*ig. 3 is a detail view of the clutch.

Fig. 4 is a side elevation of the machine shown in Fig. 1.

Fig. 5 shows another form of back gage.

Fig. 6 is a rear view of the parts shown in Fig. 5.,

Fi 7 .is an enlarged vertical section on line 7 in Fig.4. I a

Fig. 8 is. an enlarged horizontal section on line 88 in Fig. 7. V

Fig. 9 is an enlarged horizontal section on line 9-9 in Fig. 7. I

Fig. 10 is a vertical section on line 10-10 in Fig. 9.

- Fig. 11 is a perspective of the removable disk cutter for severing the wire.

Fig. 12 is a vertical section on line 1212 in Fig. 7..

Fig. 13 is a perspective of the member that carries the said disk cutter.

Fig. 14 is a perspective of the plate that.

holds the clench blocks in place.

Fig. 15 is a vertical section on line 15l5.

in Fig. 7.

frame or standard A having a base a adapted to rest upon the floor.

Fig. 16 is a vertical section on .line 1616 in Fig. 7.

Fig. 17 is a vertical section on line 17-17 in Fig. 7.

Fig. 18 is an enlarged section on line 18-18 in Fig. 4.

Fig. 19 is a perspective of the cam that carries and operates the staple former.

Fig. 20 is a perspective of the cam that carries and operates the staple driver.

-Fig. 21 is a perspective of the staple former.

Fig. 22 is a perspective of the staple driver.

Fig. 23 is an enlarged front view of the indicating device for the feed mechanism adjusting device.

Fig. 24: is an enlarged fragmentary view of the loop bar.

Fig. 25 is a detail sectional view of the front portion of the table, showing another form of side gage, whereby the work is properly positioned on the table to insure driving of the staples at the proper points therein.

As thus illustrated, the operatlve parts of the machine are supported on an upright The tilting ta le or rest B for the work is supported on the arm a of said standard. Said table consists of two parts, I; and t, rigidly connected and disposed at an angle to each other. The table is pivotally rnounted at 6 upon the block b which slides up and.

' down in the bearing 5 on the end of the arm a. lhisblock I) is provided with a threaded bore 6 which is engaged by the screw 5, which latter is held in the bearing 6'' depending from the front of thebearlng 5 The said screw is provided at its lower end with a hand wheel 5 loy which it is' rotated. By this screw the table B can be raised and lowered, in accordance with the character of the work. The pivot 6 consists of a bolt, see Fig. 7, whereby the table can be tilted and held in diiierent positions, as indicated in Fig. 4. The member I),

ltltl which is pivoted on the block 5 and which is connected with the table by a spring 5 supports the table when in the position shown in dotted lines in Fig. i, Below the I table, the plates b and b are removably set in the top of the block 12 plate I) is shown in Fig. 14, and the other plate is exactly the same except for the central opening. The clench blocks or anvils by the vertically movable member I). The

lower end of this member I) is threaded internally to engage the upper end of the threaded rod 12 which latter extends downward through the screw b A lever C is pivoted on the frame or standard A and -provided with apivoted socket piece 0 which is threaded to engage the lower threaded'end of the rod 6 The upper and lower ends of this rod 6 are thus given a right and left thread, and its middle portion is flattened at b, where it passes through the hand wheel 6 Thus when this hand wheel is rotated it does two things, as follows: It moves the table up and down, and also in effect lengthens and shortens the rod 1), whereby the raising and lowering of the table does not disturb the relation between the anvils and the top of the member 6 The pitch of the different threads is such that for any given adjustment of the table the rod 6 is correspondingly varied in length. By the lever C the anvils I) are raised to bend the staple points toward each other. A pivoted locking handle I) is arranged for holding the plate 6 in'place. By swinging tlns handle to one side the said plate can be removed, together with the anvils and the back plate 6". It will be seen that this handle clamps the plates I) and 5 The front raising the table until the stock engages the.

lower end of said gage the right adjustment will be obtained-for any given thickness of stock or material.

The front plate f of the stapler head is removably held in place by .a lock f which has a handle f for rotating it into and out of engagement with the front of said plate. The said stapler head comprises a staple former f and a staple driver 7, both of:

which can be removed or turned end for end. The said former has holes 7 adapted to engage the pins on the shank f of the cam f; The driver is provided with holes f adapted to engage the pin f on the shank f of the cam f. The cam f has a shank f adapted to engage the upper end of the staple former f and the cam f has a similar shoulder 7 adapted to engage the top of the driver F. The driver f is formed to slide up and down in the former whereby the latter acts as a guide for the driver. The said staple driver and former, and their respective cams, are fitted within the stapler head F and slide up and down therein. See Fig. 12. The cam f has a cam opening f which is engaged by the roller f on thewheel f? on the shaft f", which roller also engages the cam opening 7' in the cam f. The wheel 7, when rotated operates the staple former and driver, and the shape of the openings 7? and f is such that the driver has the usual extent ofmovement over the staple former that is to say, the driver moves downward after the former stops moving. The cutting against the vertical shoulder b on-the-top "rfiember G is fitted to slide up and down at in.tl1e top and is large enough to permit the desired movement of the table. It will be seen that the tops of said blocks Z2 and I) are beveled to engage in the corners of a box or book, in the well known manner.

A gage or back stop D, (see Fig. 4), is adapted to rest upon-the table, as shown in dotted lines, to gage the position of the work thereon. Tl'llS gage or back stop D is adjustably mounted upon swinging rods (Z, which are pivoted at d to the frame A. When the position of the table is changed, the gage can be lowered, as shown. If desired, the gage can be made as shown in Fig. 5. In this case the gage D is mounted upon the rods d which are held in the clamps at.- The rods (1 are. also held in these clamps, and-have their upper ends pivoted at 03 Thus the gage, by, lowering the one side of the staple former and driver,

to engage thev and has a spring 9 for raising it. The upper end of this member G is beveled at g to engage the roller on the cam f whereby the said member G is actuated at,

the PIOPGIJ time to cut the wire. This mem-' ber G has a groove or recess 9 which holds the round or washer-like knife 9 the latter hearing at its other side against the plate 9 The horizontally sliding block H is mounted, on the staple head, and has the knife g"v 1 removably held thereto by the plate It.

whereby horizontal movement of this block H causes the knife to move, along the groove 9 so that the length of wire cut off may be varied at will. The knife 9' can be turned around when one edge becomes worn, so as to bring a sharp edge into position to engage the wire. The anvil I supports the wire while the former f is be'nding the same into the. shape of a staple. This anvil or loop bar I is removably mountneeaeae ed on the lever 11 which is pivoted at 11' I and provided at its upper end with a roll 2' adapted to be engaged by the cam i on the back of the cam f. engages this cam 71 the loop bar I falls back by gravity, and the staple is supported by the element 2' until driven by the driver. This element i is hooleshaped and pivoted upon the end of the loop bar, so as to readily receive the staple. When the driver moves down, it engages the staple and thereby pushes the element back against the. tension of the spring 2"", which latter returns the said staple support 2' to normal position when the driver and former return to normal position. The wire is fed through a tube J and under the hold back device j, which latter consists of a rollwith fine teeth, and a screw 7" for holding it in different positions. Then the wire passes across the rest 7' which is on the lower end of an arm j, and under the feed dog it pivoted thereon. The arm j is pivoted at j and provided with a lower end portion adapted to actuate the dog j. ,This arm is rigid with an arm that has a roll jflwvhich latter is engaged by the cam f to feed the wire at the proper time. A spring j serves to keep the roll, j on the cam f and to retract the feegl dog j. A spring j presses against the back of the arm 3' to make it move under friction, 'so that the dog j will work backand forth to grip and release the wire, the wire being clamped by the dog upon the rest 3' when the feed arm y' moves toward the staple driver. A bumper K limits the back stroke of the feed arm and dog, and ismovable with, but twice as fast as, the block H. This-is accomplished by a screw L which is adapted to move or adjust the bumper K and the block H toward and away from the staple driver. It will be seen that this screw has a r tively large screw threaded portion Z whic operates the bumper, and a relatively small screw threaded portion Z which operates the cutting device support or block H, whereby the distance between the bumper and said block is changed or varied. In this way the feed is varied to vary the length of the staples. Thus the wire is pulled through the tube J and pushed into the tube M thatleads to the staple forming mechanism. The proper length is then cut off by the'jdisk knife g and driven into the work on the table. The indicator N shows the'correet adjustment of the feed. It slides with the block H.

The tube J is springy and so held at its lower end that it springs enough to take up the slack in the wire, owing to any overfeed from the reel 0, and this prevents the When the roller i side gage for the front of the table.

machine for stapling books or boxes or other I articles.

The table B has side gages X which are movable along a rod 00, and which are adapted to be secured in any position thereon by a thumb screw .70. By means of these gages, the work can bepositioned on the table and held in position for receiving the staples.

In Fig. 25,1 have shown another form pf n this case the gage V is pivoted at 3 upon a block y, which latter is adapted to slide in a dove-tail, groove g formed in the lower surface of the table. This block 3 is adapted to be held in any desired position in said groovesthat is to say, at any point along the length of the groove, by the set screw or other fastening device y whereby the said front gage can be moved along the front of the table.

By means of these front gages, and in con junction with the back stop or rear gage previously described, the work is accurately held in position on the table.

My invention .is not limited to the exact construction shown and described.

What I claim as-my invention is:

1. In a stapling machine of the class disclosed, a wire cutting device consisting of a disk or plate having an outer cutting edge, a member for actuating said disk or plate bodily, and means for moving the plate or disk laterally to vary the length of the wire cut ofi, said member having aijgroove in which said disk or plate is rotatable in'the plane thereof, and in which it is movable sidewise by'said means.

2. In a stapling machine of the class disclosed, a wire cutting device for the wire, a feed device, a back stop for the feed device, and means for adjusting the back stop and cutting device, including a single screw which controls said device and stop, said screw having means for varying the distance between the back stop and cutting device.

3. In a stapling machine of the class disclosed, a loop bar, means for forming the staple on said bar, a spring held carrier mounted on the end of said loop bar to receive the staple therefrom, and a driver arranged to depress the said carrier and dr ve the staple.

4.. Tn a machine of the class disclosed, adapted for use as a book stapling machine, a removable clenching device, means for holding said device in operative position, including a removable front plate therefor,

ill)

bearing flatwise against said device, a back plate similar to said front plate, a pivoted retainer for the front plate, and means, substantially as described for cooperating with the aforementioned elements to staple the book, comprisin means for automatically feeding the stap e Wire.

5. In a machine of the class disclosed,

adapted for use as a book stapling machine,

swingin rods, a back stop or gage for the work, a justably mounted on said swinging rods, whereby said back stop is movable into operative position, means for cooperating with the aforementioned elements to staple the book and including devices for automatically feeding the staple wire, and a tilting work support movable into engagement with said stop when the latter is raised into position. i

6. In a machine of the class disclosed, a staple driver constructed and arranged to be turned end for end, a roller, and an actuating cam plate for said staple driver, provided with a single pin for selectively engaging different holes in said driver, together with means whereby said cam is actuated by the said roller.

7. In a machine of the class disclosed, a staple former adapted to be turned end for end and provided with a longitudinal groove a reversible staple driver working in sai groove, a roller, an actuating cam plate for said staple former, provided with pins for engaging holes in said former, which said cam plate is actuated by said roller, and means for operating said driver.

8. In a machine of the class disclosed, a box or housing, a pair of fiat cams mounted therein, held fiatwise" together, a staple driver for one cam, a staple former for the other cam, disposed fiatwise together and between the depending shanks of said cams,

. means for actuating said cams, and a flat I a pair of plates,',a pair of clench front plate secured to said box, or housing, whereby the said parts are all easily accessible and easily removable.

9. In a machine of the class disclosed, a wire feed mechanism, a staple forming and driving mechanism, a wire retardin device, and means for cutting off the wire Eefore it reaches the said feed mechanism, for the purpose described, consisting of a manually operable cutting device disposed between the retarding device and said mechanism.

10. In a machine ofthe class disclosed, adapted for use as a book staplin machine,

locks pivoted between the two plates, means for adjusting said blocks, a table comprising sides arranged at an angle to each other so as to form a corner at their meeting edges and. associated with said blocks, means for adjusting said table, means for actuating said blocks, a single device for operating both of said adjusting means, and means, substantially as described, for cooperating with the aforementioned elements to staple the book,

one said platebeing removable, and a retainer for said removable plate. v

11. In a machine of the class dlsclosed, adapted for use as a book stapling machine,

a pair of clench blocks pivoted between two member, means for holding the wire in position to be cut by said member, a rotary I shaft, a rotary cam on said shaft for directly actuating said cutting member, sprlng means associated therewith for keeping said cutting member in engagement with said cam a cutter on said member, and means for ad usting said cutter sidewise in said member to vary the length of the staple.

13. Ina machine of the class disclosed, a wire cutter, a block for adjusting said outter, upon which the same is mounted to reciprocate, a screw for adjusting said block to vary the length of the wire cut ofi by said cutter, a staple wire feed device, a bumper for the feed device, and means on said screw for manually adjusting said bumper to change the position thereof, said screw conmeeting; the bumper and block together.

14. A stapling machine comprising a staple former, a staple driver, a movable anvil member cooperating with said former to make the staple, and mechanism to support the staple after leaving said anvil, said mechanism including an element carried by said member to receive the. staple, and a spring carried by said member and arranged toyieldingly present said element in the path of said driver.

15. A stapling machine comprising 'a staple former, a staple driver, a movable anvil cooperating with said former to make the staple, and mechanism to support the staple after leaving said anvil, said mechanlsm including a pivoted element to receive the staple, a spring arranged to yieldingly present sai element in the path of said driver, and a rod inclosed by said spring and pivoted on said element.

16. A stapling machine comprising a staple former, a staple driver, a movable anvil cooperating with said former to make the staple, and mechanism to support the staple after leaving said anvil, said mechanism including a pivoted element to receive the staple, and a spring arranged to yieldingly present said element in the path 130 meaeee (if said driver, said element being supported by said anvil,

17., A stapling machine comprising a staple form-er, a staple driver, a movable anvil coiiperatingg with said former to make the staple, and "mechanism to support the staple after leaving said anvil, said mechanism including a pivoted element to receive the staple, and a spring arranged to yieldingly present said element in the Eath of said driver, said anvil having a mova le support for the pivot thereof.

Signed by me at St. Joseph, Michigan, this 22d day of December, 1909.

' EDWARD CRAIG. l-Witnesses:

W. H. RAY,

D. F. SCHOENBEGK. 

